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$510+ Cheap flights from Gatwick (LGW) to Washington

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SEA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Gatwick to Washington

Keep the following information in mind while searching for Gatwick to Washington flight deals. Data was last updated September 17, 2025.

Round-trip from

$603
(Trip.com)

One-way from

$510
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$677
From London Gatwick to Washington
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One-way flight from London Gatwick to Washington
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Highest demand for flights based on searches. 13% potential increase in price ($113 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Gatwick to Washington

Cheapest flights from Gatwick to Washington
Explore the most affordable flight options available from Gatwick to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:55 amLGW - SEA
1 stop13h 05mIcelandair
Sun 11/22:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/15$603
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:20 pmLGW - SEA
2 stops49h 15mMultiple Airlines
Sun 11/169:34 pmSEA - LGW
1 stop24h 26mMultiple Airlines
Deal found 9/15$610
This Gotogate deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/253:40 pmLGW - SEA
1 stop13h 00mIcelandair
Sat 11/292:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/16$612
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:40 pmLGW - SEA
2 stops36h 05mSWISS
Sun 11/162:40 pmSEA - LGW
2 stops19h 10mSWISS
Deal found 9/15$613
This Icelandair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:35 pmLGW - SEA
1 stop13h 05mIcelandair
Mon 10/133:45 pmSEA - LGW
1 stop14h 50mIcelandair
Deal found 9/16$616
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2811:55 amLGW - SEA
1 stop13h 05mIcelandair
Tue 11/112:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/16$617
This Icelandair deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/253:40 pmLGW - SEA
1 stop13h 00mIcelandair
Tue 11/252:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/17$618
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2711:55 amLGW - SEA
1 stop13h 05mIcelandair
Tue 12/22:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/16$619
This Icelandair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/111:55 amLGW - SEA
1 stop13h 05mIcelandair
Wed 3/113:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/15$620
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1911:55 amLGW - SEA
1 stop13h 05mIcelandair
Sun 11/302:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/16$621
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:50 amLGW - SEA
1 stop22h 09mMultiple Airlines
Thu 10/161:02 pmSEA - LGW
2 stops37h 53mMultiple Airlines
Deal found 9/16$622
This Justfly.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:40 pmLGW - SEA
1 stop13h 00mIcelandair
Fri 12/52:35 pmSEA - LGW
1 stop12h 20mIcelandair
Deal found 9/16$623

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gatwick to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Washington that are best for you.

Fly from

Gatwick

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 11/5

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Tue 3/31

7:00 pm-2:40 pm

1 stop11h 40m

$619

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Wed 11/5

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Wed 4/1

7:00 pm-2:40 pm

1 stop11h 40m

$619

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 11/3

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Wed 4/1

7:00 pm-2:40 pm

1 stop11h 40m

$619

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Mon 11/3

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Tue 3/31

3:45 pm-2:40 pm

1 stop14h 55m

$619

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 11/1

11:55 am-6:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-10:55 am

1 stop12h 20m

$620

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 11/2

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Mon 3/16

3:35 pm-10:55 am

1 stop12h 20m

$620

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Tue 11/4

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Tue 3/17

3:35 pm-10:55 am

1 stop12h 20m

$620

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sun 11/23

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Fri 11/28

2:35 pm-10:55 am

1 stop12h 20m

$620

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Thu 11/6

11:55 am-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Fri 4/3

7:00 pm-2:40 pm

1 stop11h 40m

$624

LondonSeattle

LGW - SEA

LGWSEA

London Gatwick

Sat 11/1

2:00 pm-1:13 pm

2 stops30h 13m

Seattle/Tacoma Intl

Sat 11/8

9:34 pm-6:00 am

1 stop24h 26m

$634

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 49 results
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Best time to book a flight from Gatwick to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Gatwick with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Washington

What is the cheapest month to book a flight from London Gatwick Airport to State of Washington?

Currently, January is the cheapest month in which you can book a flight from London Gatwick Airport to State of Washington (average of $238). Flying from London Gatwick Airport to State of Washington in June is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from London Gatwick Airport to State of Washington?

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown Icelandair from London Gatwick Airport to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
545 reviews

Overall

7.0

Boarding

7.2

Crew

8.0

Comfort

6.9

Food

6.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

KEF - EWR

The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient
Icelandair
7.0
Good
545 reviews
Icelandair
7.0
Good
545 reviews

Overall

7.0

Boarding

7.2

Crew

8.0

Comfort

6.9

Food

6.2

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

KEF - EWR

The airport in Reykjavik had too few seats at the departure gate. Otherwise the airport experience was fine. The flight was timely and smooth. The airplane was well maintained and staff pleasant and efficient

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Gatwick Airport to State of Washington?

    There are many flights that can get you from London Gatwick Airport to State of Washington in 13h 05m. Fly via Icelandair or American Airlines to get the fastest option. London Gatwick Airport and State of Washington are separated by a distance of 4807 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from London Gatwick Airport to State of Washington?

    While some choose either London Gatwick - Portland or London Gatwick - Spokane, London Gatwick - Seattle/Tacoma Intl is the most popular route from London Gatwick Airport to State of Washington.

  • Can I find deals for flights from Gatwick to Washington that include hotel bookings?

    Yes. In addition to deals on Gatwick to Washington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Washington.

  • Can I find deals for business class flights from Gatwick to Washington?

    Yes. Cheapflights offers flight deals from Gatwick to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Gatwick Airport to State of Washington?

    Currently, January is the cheapest month in which you can book a flight from London Gatwick Airport to State of Washington (average of $238). Flying from London Gatwick Airport to State of Washington in June is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Gatwick to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Gatwick to Washington

Discover the top airline that operate flights from Gatwick to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$402Average$907FlexibilityNo cancel feeOn-time76%

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